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| File name: | AsyncClient.exe |
| Full analysis: | https://app.any.run/tasks/a92a090e-9029-4596-9768-b2829c86a974 |
| Verdict: | Malicious activity |
| Threats: | AsyncRAT is a RAT that can monitor and remotely control infected systems. This malware was introduced on Github as a legitimate open-source remote administration software, but hackers use it for its many powerful malicious functions. |
| Analysis date: | June 27, 2022, 08:47:16 |
| OS: | Windows 7 Professional Service Pack 1 (build: 7601, 32 bit) |
| Tags: | |
| Indicators: | |
| MIME: | application/x-dosexec |
| File info: | PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows |
| MD5: | 7CF29CC0B145A4B45515C558EB4D9987 |
| SHA1: | D3F3BD547DD35367A8B6348DD4A6BFE32E75DCB7 |
| SHA256: | C3C9BB0307B0ED3B59702B6236E78BDEE04C8E329DB6100DDFF4FBF9F97D40A3 |
| SSDEEP: | 768:Hu/6ZTgoiziWUUM9rmo2qrrKjGKG6PIyzjbFgX3iINy3nkXw5jyBDZjx:Hu/6ZTgle2mKYDy3bCXSIAXkX/djx |
MALICIOUS
ASYNCRAT detected by memory dumps
- AsyncClient.exe (PID: 2928)
SUSPICIOUS
Checks supported languages
- AsyncClient.exe (PID: 2928)
Reads the computer name
- AsyncClient.exe (PID: 2928)
INFO
No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
AsyncRat
(PID) Process(2928) AsyncClient.exe
Install_Folder%AppData%
Saltbfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941
Aes_Key4f2a38358ece373c3d695949158e3d8f1746e20a01daa3be863f33dfe58a318d
BotnetDefault
bdosfalse
PasteBinnull
AntiVMfalse
Server_SignatureKLvozU6RnmtVwJPRZHt6dDkE/S6be4BNSP8M+GdXyPGJ9vyzhD4jSly/LRNep5BVrq4K3SdGUQAP5D7yK1QTbYvKCzeiKks2YGR11Id/f99PYVuB3t8MKVpM6A7JDTWhTK21QBYama6qbPTp4AeC+5ztwz3bwCR9De/wdZbmm3eIN+FN45w0ZqCg5bENL6pWCGs0tvejTBna5AhR4Pb2uvuCMQPzx1YwLopBYRyuDAM3aLNlftZLt2OPwopvhholpek5YqwvNzsxtAcP16D+V4q5iPgV9DeJuCGujoFjkYxm...
CertificateMIIE8jCCAtqgAwIBAgIQAIC9Efye6UBG12POBFv7QzANBgkqhkiG9w0BAQ0FADAaMRgwFgYDVQQDDA9Bc3luY1JBVCBTZXJ2ZXIwIBcNMjIwNTAxMDQzNDUwWhgPOTk5OTEyMzEyMzU5NTlaMBoxGDAWBgNVBAMMD0FzeW5jUkFUIFNlcnZlcjCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAIxKIp8FoP20Y3lgfwqB41dkKhknGFQh/1VKN+rekYpXr63nBAAEZB5OjB23AHDxfkZox6ajcPdR...
MutexAsyncMutex_6SI8OkPnk
Autorunfalse
Version0.5.7B
Ports (1)5552
C2 (1)shitiwillfu.ddns.net
TRiD
| .exe | | | Generic CIL Executable (.NET, Mono, etc.) (56.7) |
|---|---|---|
| .exe | | | Win64 Executable (generic) (21.3) |
| .scr | | | Windows screen saver (10.1) |
| .dll | | | Win32 Dynamic Link Library (generic) (5) |
| .exe | | | Win32 Executable (generic) (3.4) |
EXIF
EXE
| AssemblyVersion: | 1.0.0.0 |
|---|---|
| ProductVersion: | 1.0.0.0 |
| ProductName: | - |
| OriginalFileName: | Stub.exe |
| LegalTrademarks: | - |
| LegalCopyright: | - |
| InternalName: | Stub.exe |
| FileVersion: | 1.0.0.0 |
| FileDescription: | - |
| CompanyName: | - |
| Comments: | - |
| CharacterSet: | Unicode |
| LanguageCode: | Neutral |
| FileSubtype: | - |
| ObjectFileType: | Executable application |
| FileOS: | Win32 |
| FileFlags: | (none) |
| FileFlagsMask: | 0x003f |
| ProductVersionNumber: | 1.0.0.0 |
| FileVersionNumber: | 1.0.0.0 |
| Subsystem: | Windows GUI |
| SubsystemVersion: | 4 |
| ImageVersion: | - |
| OSVersion: | 4 |
| EntryPoint: | 0xc73e |
| UninitializedDataSize: | - |
| InitializedDataSize: | 2560 |
| CodeSize: | 43008 |
| LinkerVersion: | 8 |
| PEType: | PE32 |
| TimeStamp: | 2020:05:10 07:24:51+02:00 |
| MachineType: | Intel 386 or later, and compatibles |
Summary
| Architecture: | IMAGE_FILE_MACHINE_I386 |
|---|---|
| Subsystem: | IMAGE_SUBSYSTEM_WINDOWS_GUI |
| Compilation Date: | 10-May-2020 05:24:51 |
| Comments: | - |
| CompanyName: | - |
| FileDescription: | - |
| FileVersion: | 1.0.0.0 |
| InternalName: | Stub.exe |
| LegalCopyright: | - |
| LegalTrademarks: | - |
| OriginalFilename: | Stub.exe |
| ProductName: | - |
| ProductVersion: | 1.0.0.0 |
| Assembly Version: | 1.0.0.0 |
DOS Header
| Magic number: | MZ |
|---|---|
| Bytes on last page of file: | 0x0090 |
| Pages in file: | 0x0003 |
| Relocations: | 0x0000 |
| Size of header: | 0x0004 |
| Min extra paragraphs: | 0x0000 |
| Max extra paragraphs: | 0xFFFF |
| Initial SS value: | 0x0000 |
| Initial SP value: | 0x00B8 |
| Checksum: | 0x0000 |
| Initial IP value: | 0x0000 |
| Initial CS value: | 0x0000 |
| Overlay number: | 0x0000 |
| OEM identifier: | 0x0000 |
| OEM information: | 0x0000 |
| Address of NE header: | 0x00000080 |
PE Headers
| Signature: | PE |
|---|---|
| Machine: | IMAGE_FILE_MACHINE_I386 |
| Number of sections: | 3 |
| Time date stamp: | 10-May-2020 05:24:51 |
| Pointer to Symbol Table: | 0x00000000 |
| Number of symbols: | 0 |
| Size of Optional Header: | 0x00E0 |
| Characteristics: |
|
Sections
Name | Virtual Address | Virtual Size | Raw Size | Charateristics | Entropy |
|---|---|---|---|---|---|
.text | 0x00002000 | 0x0000A744 | 0x0000A800 | IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ | 5.50647 |
.rsrc | 0x0000E000 | 0x000007FF | 0x00000800 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ | 4.88507 |
.reloc | 0x00010000 | 0x0000000C | 0x00000200 | IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ | 0.0815394 |
Resources
Title | Entropy | Size | Codepage | Language | Type |
|---|---|---|---|---|---|
1 | 5.22615 | 1171 | UNKNOWN | UNKNOWN | RT_MANIFEST |
Imports
mscoree.dll |
Total processes
33
Monitored processes
1
Malicious processes
1
Suspicious processes
0
Behavior graph
Click at the process to see the details
Process information
PID | CMD | Path | Indicators | Parent process |
|---|---|---|---|---|
| 2928 | "C:\Users\admin\AppData\Local\Temp\AsyncClient.exe" | C:\Users\admin\AppData\Local\Temp\AsyncClient.exe | Explorer.EXE | |
User: admin Integrity Level: MEDIUM Version: 1.0.0.0 AsyncRat(PID) Process(2928) AsyncClient.exe Install_Folder%AppData% Saltbfeb1e56fbcd973bb219022430a57843003d5644d21e62b9d4f180e7e6c33941 Aes_Key4f2a38358ece373c3d695949158e3d8f1746e20a01daa3be863f33dfe58a318d BotnetDefault bdosfalse PasteBinnull AntiVMfalse Server_SignatureKLvozU6RnmtVwJPRZHt6dDkE/S6be4BNSP8M+GdXyPGJ9vyzhD4jSly/LRNep5BVrq4K3SdGUQAP5D7yK1QTbYvKCzeiKks2YGR11Id/f99PYVuB3t8MKVpM6A7JDTWhTK21QBYama6qbPTp4AeC+5ztwz3bwCR9De/wdZbmm3eIN+FN45w0ZqCg5bENL6pWCGs0tvejTBna5AhR4Pb2uvuCMQPzx1YwLopBYRyuDAM3aLNlftZLt2OPwopvhholpek5YqwvNzsxtAcP16D+V4q5iPgV9DeJuCGujoFjkYxm... CertificateMIIE8jCCAtqgAwIBAgIQAIC9Efye6UBG12POBFv7QzANBgkqhkiG9w0BAQ0FADAaMRgwFgYDVQQDDA9Bc3luY1JBVCBTZXJ2ZXIwIBcNMjIwNTAxMDQzNDUwWhgPOTk5OTEyMzEyMzU5NTlaMBoxGDAWBgNVBAMMD0FzeW5jUkFUIFNlcnZlcjCCAiIwDQYJKoZIhvcNAQEBBQADggIPADCCAgoCggIBAIxKIp8FoP20Y3lgfwqB41dkKhknGFQh/1VKN+rekYpXr63nBAAEZB5OjB23AHDxfkZox6ajcPdR... MutexAsyncMutex_6SI8OkPnk Autorunfalse Version0.5.7B Ports (1)5552 C2 (1)shitiwillfu.ddns.net | ||||
Total events
367
Read events
353
Write events
14
Delete events
0
Modification events
| (PID) Process: | (2928) AsyncClient.exe | Key: | HKEY_CLASSES_ROOT\Local Settings\MuiCache\16C\52C64B7E |
| Operation: | write | Name: | LanguageList |
Value: en-US | |||
Executable files
0
Suspicious files
0
Text files
0
Unknown types
0
Dropped files
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
0
TCP/UDP connections
3
DNS requests
2
Threats
0
HTTP requests
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
Connections
PID | Process | IP | Domain | ASN | CN | Reputation |
|---|---|---|---|---|---|---|
2928 | AsyncClient.exe | 41.36.9.243:5552 | shitiwillfu.ddns.net | TE-AS | EG | malicious |
DNS requests
Domain | IP | Reputation |
|---|---|---|
shitiwillfu.ddns.net |
| malicious |
dns.msftncsi.com |
| shared |
Threats
PID | Process | Class | Message |
|---|---|---|---|
— | — | Potentially Bad Traffic | ET POLICY DNS Query to DynDNS Domain *.ddns .net |